From owner-freebsd-stable@FreeBSD.ORG Thu Oct 7 22:24:15 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DCFA310656D3; Thu, 7 Oct 2010 22:24:15 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 9A0188FC22; Thu, 7 Oct 2010 22:24:14 +0000 (UTC) Received: from porto.topspin.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id BAA22019; Fri, 08 Oct 2010 01:24:05 +0300 (EEST) (envelope-from avg@icyb.net.ua) Received: from localhost.topspin.kiev.ua ([127.0.0.1]) by porto.topspin.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1P3ysf-0007gD-Bv; Fri, 08 Oct 2010 01:24:05 +0300 Message-ID: <4CAE4884.8080608@icyb.net.ua> Date: Fri, 08 Oct 2010 01:24:04 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.9) Gecko/20100918 Lightning/1.0b2 Thunderbird/3.1.4 MIME-Version: 1.0 To: Matthew Seaman References: <4CADA4D5.7080204@infracaninophile.co.uk> <4CAE2D6E.7070100@icyb.net.ua> <4CAE3D29.2020309@infracaninophile.co.uk> In-Reply-To: <4CAE3D29.2020309@infracaninophile.co.uk> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Pawel Jakub Dawidek , freebsd-stable@freebsd.org Subject: Re: Multiple zdevs in the root zpool? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Oct 2010 22:24:16 -0000 on 08/10/2010 00:35 Matthew Seaman said the following: > On 07/10/2010 21:28:30, Andriy Gapon wrote: >> on 07/10/2010 13:45 Matthew Seaman said the following: >>> However, according to my understanding, if you want to boot from a >>> zpool, you can only have one vdev in that pool. >>> >>> But what exactly does this mean? >> >> Yes, exactly, what does that mean? :) >> Where did your understanding come from? >> > > It was from reading posts like this: > http://lists.freebsd.org/pipermail/freebsd-questions/2010-January/211677.html > > Plus the comments in > cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c and > sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c (grep for > the words 'root pool') Hmm, it seems like a protection for limitations of OpenSolaris boot loader that slipped into our sources. I am pretty sure that our boot code can boot such pools without problems. -- Andriy Gapon